001/* 002 * (C) Copyright 2010 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Nuxeo - initial API and implementation 016 */ 017 018package org.nuxeo.runtime.management.metrics; 019 020import java.io.IOException; 021 022import org.apache.commons.logging.Log; 023import org.apache.commons.logging.LogFactory; 024import org.javasimon.CallbackSkeleton; 025import org.javasimon.Counter; 026import org.javasimon.Sample; 027import org.javasimon.Split; 028 029public class MetricSerializingCallback extends CallbackSkeleton { 030 031 protected static final Log log = LogFactory.getLog(MetricSerializingCallback.class); 032 033 protected final MetricSerializer serializer; 034 035 public MetricSerializingCallback(MetricSerializer serializer) { 036 this.serializer = serializer; 037 } 038 039 @Override 040 public void stopwatchStop(Split split) { 041 toStream(split.getStopwatch().sample()); 042 } 043 044 @Override 045 public void counterSet(Counter counter, long val) { 046 toStream(counter.sample()); 047 } 048 049 protected void toStream(Sample sample) { 050 try { 051 serializer.toStream(sample); 052 } catch (IOException e) { 053 log.info("not streamed " + sample, e); 054 } 055 } 056 057}